Netgear LG2200D User's Guide download pdf (Page 27)

Control Access to the Internet

U.S. Cellular® 4G LTE™ Router (LG2200D)

Block Services from the Internet

Services are functions that server computers perform at the request of client computers. For

example, web servers serve web pages, time servers serve time and date information, and

game hosts serve data about players’ moves. When a computer on the Internet sends a

request for service to a server computer, a port number identifies the requested service. This

number displays as the destination port number in the transmitted IP packets. For example, a

packet that is sent with the destination port number 80 is an HTTP (web server) request.

The Internet Engineering Task Force (IETF at http://www

.ietf.org/) defines service numbers

for many common protocols and they are published in RFC1700, “Assigned Numbers.”

Authors of the applications typically choose service numbers from the range 1024–65535.

Although the router already holds a list of many service port numbers, you are not limited to

these choices. You can often find port number information by contacting the publisher of the

application, by asking user groups or newsgroups, or by searching.

The Block Services screen lets you add and block specific Internet services by computers on

your network.

This is called service blocking or port filtering. To add a service for blocking,

first find out which port number or range of numbers the application uses.

 To block services:

1. Launch an Internet browser from a computer or wireless device that is connected to the

network.

2. Enter http://www

.routerlogin.net or http://www.routerlogin.com.

A login screen displays.

3. Enter the router user name and password.

The user name is admin.

The default password is password. The user name and

password are case-sensitive.

The BASIC Home screen displays.

4. Select

ADVANCED > Security > Block Services.

5. Specify when to block the services:

• T

o block the services all the time, select the Always radio button.

• T

o block the services based on a schedule, select the Per Schedule radio button.

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Netgear LG2200D User's Guide Page 27